Railway-brake.



PATENTED JULY 3, 1906.

W. H. WOOD. RAILWAY BRAKE.

APPLICATION FILED FEB. 14. 1906.

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PATENTED JULY 3, 1906. W. H. WOOD.

RAILWAY BRAKE.

APPLICATION FILED PEB.14,1906.

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W. H. WOOD. RAILWAY BRAKE.

APPLICATION FILED FEB. 14, 1906.

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PATENTED JULY 3, 1906.

W; H. WOOD.

RAILWAY BRAKE.

APPLICATION FILED PEB.14.19G6

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UNITED STATES PATENT OFFIOE.

RAILWAY-BRAKE.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed February 14, 1906. Serial No. 301,006.

To all whmn it may concern.-

Be it known that I, WILLIAM HADLEY l/VOOD, engine driver, a subject of the King of Great Britain and Ireland, residing at Lloyd street, Petersburg, State of South Australia, Commonwealth of Australia, have invented certain new and useful Improvements in Railway-Brakes, of which the following is a specification.

This invention relates to brakes for railway-trucks and other railway-vehicles, and comprises a brake-gear whereby the brakes may be applied to or lifted from the wheels from either side of the vehicle by handpower.

One of the advantages of my improved gear is that the several parts are so situated and connected that they do not in any way interfere with the side, end, or bottom doors of the vehicle.

A further advantage is that the handlevers whereby the brakes are applied have a horizontal movement only and can be operated as a vehicle passes.

In order that my invention may be clearly understood, I will describe the same with reference to the accompanying drawings, in which it is shown applied to a goods-Wagon, the outlines only of such wagon being indicated and by dotted lines.

Figures 1 and 1 showaside view. Figs. 2 and 2 show aplan. Figs. 3 and4 are end views showing in Fig. 3 the position of the parts shown when the brakes are lifted from the Wheels and in Fig. 4 the position of the parts shown when the brakes are applied to the wheels. Fig. 5 shows three views of the socket-block attached to the brake-lever. Fig. 6 shows two views of the bracket in which the cross-lever is pivoted. Fig. 7 shows three views of the bracket which carries the pivoted weighted bell-crank whereby the sliding bar is moved and held forward. Figs. 5 to 7 are drawn to a larger scale than the other figures. Fig. Sis an end view showing an alternative arrangement of cross-lever, the lever in this case being jointed. Figs. 9 and 10 show the means for locking the brake-lever in any desired position or for releasing the same from either side of the vehicle. Fig. 9 is an end view, and Fig. 10 shows horizontal and vertical section of the locking device.

Since the frames of the trucks and other I vehicles vary very much in size, material, and general arrangement, it will be evident that the shape and situation of the several brackets or attachments whereby the operative parts of my invention are attached will vary accordingly, and those shown in the drawings are for illustration only.

Brake-shoes are fitted to any desired number of the wheels, such brake-shoes being carried and operated by hangers, rods, and rock-shaft, the end of the rock-shaft being fitted with a side hand brake-lever A ac,- cording to any of the well-known arrangements. My invention comprises gear or means whereby this side brake-lever may be dropped from either side or end of the vehicle to apply the brake and lifted from either side to lift the brakes from the wheels and also a contrivance for locking the brake-lever in any desired position or for releasing the same from either side of the vehicle.

The brake-lever A may be lifted from either side of the vehicle. Upon the one side it is lifted, as heretofore, by the handpiece upon its immediate end. To lift it from the other side, the cross-lever B is employed. This lever is pivoted in a bracket O and has its one end attached to the brake-lever by means of the block D. The shorter end of the lever is enlarged or weighted to outweigh the longer end and to provide the necessary brake-block pressure. The bracket O is bolted to the head-stock of the vehicle. In Fig. 8 the cross-lever is shown in two parts, each part being pivoted in a separate bracket and the two parts being jointed so that the brake may be lifted from the wheels by lifting the hand end of the lever.

To hold the brake-lever A in its raised position, it is fitted with a socket-block D, which is engaged by a sliding square bar E, which bar is carried in two brackets F and G, secured, respectively, to the side sole and the head-stock of the vehicle-frame. The sliding bar is square in section to prevent twisting and is beveled on the under face of its forward end, while toward its rear end it is engaged by the upper end of a pivoted weighted bell-crank H, said upper end engagin an adjustable collar I, secured upon the sliding bar. The pivot of the weighted bell-crank is carried by the bracket G, secured to the vehicle-frame, and the tendency of the crank is to throw the bar outward. The forward movement is limited by the adjustable collar J coming against the bracket G.

The socket piece or block D, which engages the end of the sliding bar E, is bolted or otherwise secured to the brake-lever, and in addition to the socket-opening for the sliding bar it carries two lugs, between which the end of the cross-lever B is pivoted. The block is made separately-for convenience in manufacture, but may be formed integral with the brake-lever, if preferred.

Upon the brake-lever A being raised either by means of the handle on its end or by means of the cross-lever B, the socket-piece D as it rises meets the beveled under face of the sliding bar E and forces it back until the sliding bar shoots into the socket and retains the brake-leverin its raised position.

To apply the brakes, the brake-lever may be dropped from any corner of the vehicle by means of the hand-levers K, L, M, and N,

which are pivoted to the vehicle-frame and are connected as shown more particularly in Figs. 2 2 P is a bell-crank lever pivoted to the vehicle-frame and having one end fitting upon a pin Q on the top of the sliding bar E. The other end of this bellcrank lever is connected by a link R to the end of the lever K. The lever L is connected by a rod S to the link R, and so to the bell-crank P. The lever M is connected by a rod T to the end of the sliding bar E. The lever N is connected by a rod V to the lever M, and so through the rod T to the end of the sliding bar. To enable the brake-lever to be dropped by a person in the vehicle, I provide a lever O on the end of the vehicle engaging a rockable plate W, pivoted to the under side of the head-stock and having its other end engaged by a pin proj ecting from the rod T. Upon any one of the levers K, L, M, N, or 0 being moved in the direction of the adjacent arrow, the sliding bar E will be drawn inward and withdrawn from the socket-piece, allowing the brake-lever to drop, thereby applying the brakes.

To enable the brake-block pressure to be increased or decreased by a person riding on the vehicle, I provide a vertical bar X, (see Figs. 3 and 4,) its lower end being pivoted to the cross-leverB and its upper portion passing through a guide or bracket secured to the vehicle end. The top of the bar has a handle whereby it may be lifted or pressed down to increase or decrease the brake-block pressure. This bar and bracket may have plain adjacent surfaces; but I prefer to construct and fit them as shown in Figs. 9 and 10, whereby I provide means for locking the brake-lever in any desired position. This gear operates with that reviously described and shown in the prece ing figures, on which it is not shown; but it is shown separately for the sake of clearness. The face of the bar X instead of being plain is grooved or corrugated,

and the adjacent face of the bracket is corres ondingly grooved or corrugated. Behind tlie vertical bar X and carried in the same bracket is a wedge Y, the ends of which are connected to levers Z at either side of the vehicle. Upon either of the levers Z being moved in the direction indicated by the adjacent arrow, the wedge is withdrawn sufficiently to release the bar X from the rooves of the bracket, and the bar X and ever B may be raised or lowered. Upon either of the levers Z being moved in the direction opposite to that indicated, the wedge is pushed 1n and the grooved face of the bar caused to engage the grooved face of the bracket, thereby preventing any movement up or down. The. wedge is held in position byfriction only, which friction may be obtained by. any suitable device. In some descrip tions of vehicles this vertical bar may be secured to the side brake-lever direct, with suitable variation in the wedge connections.

Having now fully described and ascertained my said invention and the manner in which it is to be performed, I declare that what I claim is 1. The ,combination with one or more brake-shoes carried and operated by hangers,rods, rock-shaft and side brake-lever, of a cross-lever pivoted between its ends in a bracket at the end of the vehicle, to swing up and down, and attached at one end to said side brake-lever, substantially as described and for the purpose set forth.

2. The combination with one or more brake-shoes carried and operated by hangers, rods, rock-shaft and side brake-lever, of a jointed cross-lever pivoted in two brackets at the end of the vehicle and attached at one end to said side brake-lever, substantially as described and for the purpose set forth.

3. In brake-gear for railway-vehicles, a side hand brake-lever having a socket piece or block adapted to engage the end of a sliding bar carried in brackets attached to the vehicle-body, substantially as described and i for the purpose set forth.

4. In brake-gear for railway-vehicles, a sliding bar carried in fixed brackets and provided with means for operating the same in either direction, the means for moving in one direction comprising a pivoted weighted bell-crank and a collar on the bar, and the means for operating in the other direction comprising an arrangement of levers and connecting-rods, substantially as described.

5. In brake-gear for railway-vehicles, the combination with a side brake-lever, of a sliding bar carried in fixed brackets and adapted to enga e a socket upon such lever, said sliding bar aving the under face of its forward end beveled and being moved in the one direction by a pivoted weighted bellcrank engaging a collar on the bar and in the other by hand-levers and connections, substantially as described and for the purpose set forth.

6. In brake-gear for railway-vehicles, the combination with a sliding bar, of four levers one on each corner of the vehicle, such levers being pivoted to the vehicle-frame and connected b rods either directly or through a bell-cran lever to the sliding bar, substantially as described and for the purpose set forth.

7. In brake-gear for railway-vehicles, the combination with a sliding bar, of a lever pivoted to the vehicle-frame and connected by a' rockable plate, also pivoted to the vehiole-frame, and by a rod to the sliding bar, substantially as described and for the purpose set forth.

8. In brake-gear for railway-vehicles, the combination with a brake-lever, of a vertical bar attached thereto and having a handle upon itsupper end whereby the brake-block pressure can be increased or decreased, substantially as described.

9. In brakeear for railway-vehicles, the

combination with a hand-lever, of a verticalbar pivoted thereto having its upper portion grooved or corrugated and passing through a bracket or guide with correspondingly grooved or corrugated adjacent face against which it may be ressed by a Wedge operated by a lever at eit er side of the vehicle, substantially as described and for the purpose set forth.

10. The means for looking a brake-lever in any desired position or for releasing the same from either side of a vehicle, comprising a vertical bar pivoted to the lever and having its upper portion grooved or corrugated, a bracket or guide for the upper portion of such bar having its adjacent face correspondingly grooved or corrugated, and a wedge behind such bar connected to levers at either side of the vehicle, substantially as described.

11. The combination with one or more brake-shoes, the side brake-lever, and the connections between the side brake-lever and the brake-shoes for operating the latter, of a crosslever pivoted to swing up and down and attached at one end to said side brake-lever to lift the same, a device for automatically looking the side brake-lever in the raised position, and means for moving the locking device to release the side brake-lever and apply the brakes.

In testimony that I claim the foregoing as my invention I have signed my name, in the presence of two subscribing Witnesses, this 3d day of January, 1906.

WILLIAM HADLEY WOOD.

Witnesses:

ARTHUR GORE CoLLIsoN, JOHN CHARLES CHRISTIAN STARK 

